ML445223331
Colaborador
Anonymous Média deste colaborador
Data
Localização
Grasslands
Kittitas, Washington, United States
Média deste local Lista Ilustrada- Idade e sexo
- Macho Adulto - 1
- Comportamentos
- Corte, exibição ou cópula
- Sons
- Não vocal
- Playback
- Não especificado
Notas sobre o média
Male Costa's Hummingbird performing a dive display to a female Anna's Hummingbird. The Anna's was in the process of constructing a nest. The nest was incomplete and had no eggs at the time and consisted of only of a thin layer of spider silk.
Detalhes da observação
Small green hummingbird with a short tail, purple, helmeted gorget with long gorget tails. Green breast with whitish throat and white ear patch. The bird was seen performing a shallow "U"-shaped dive display for an Anna's female. The dive display produced a high-pitched rising and then descending noise. The dive display sounds are drowned out by a noisy House Finch but are easily visible on the spectrogram and consist of a thin, rising then falling whistle approaching 10k Hz at the highest pitch.
Espécies adicionais
Informação técnica
- Gravador
- iPhone 11
- Microfone
- internal
- Acessórios
- Tamanho do ficheiro original
- 4.83 MB